Home / 12,783,619.20-19,175,428.80-8,006,044.80

Finding the Fourth Proportional to 12,783,619.20, 19,175,428.80 and 8,006,044.80

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Solution

The fourth proportional to 12,783,619.20, 19,175,428.80 and 8,006,044.80 is: 12,009,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,619.20 : 19,175,428.80 = 8,006,044.80 : x
  2. Step 2: Convert to fraction form
    12,783,619.20/19,175,428.80 = 8,006,044.80/x
  3. Step 3: Cross multiply
    12,783,619.20x = 19,175,428.80 × 8,006,044.80
  4. Step 4: Simplify right side
    12,783,619.20x = 153,519,342,032,010.25
  5. Step 5: Solve for x
    x = 153,519,342,032,010.25/12,783,619.20
  6. Step 6: Final answer
    x = 12,009,067.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.